Ruellia. | XCVIII, ACANTHACE (CLARKE). 47 
7, R. genduana, C’. B. Clarke. More glabrous and more obtuse- 
leaved than 2. prostrata. Middle stem-leaves orbicular. Ovary hairy 
except the stalk ; 3-5 ovules in each cell. Capsule hairy, entirely as of 
R. prostrata.—R. sudanica, Lindau in Engl. Jahrb. xx. 15, partly. 
Dipteracanthus genduanus, Schweinf. in Verh. Zool.-Bot. Gesell. Wien. 
Xvili. 680, 
Wile Land. Gallabat : banks of the River Gendua, Schweinfurth, 131! 132! 
This species, from its hairy ovary, cannot be united with R. sudanica, unless 
R. prostrata be united with R. patula, It might, however, be esteemed a var. only of 
BR. prostrata. 
8. R. lineari-bracteolata, Lindaw in Ann. Istit. Bot. Roma vi. 
[1896], 70. Small shrub; branches woody, very slender, white. 
Leaves 24 by 3 in., linear, with scattered longish white hairs. Flowers 
solitary ; bracteoles 2, 2 by +4, in. Calyx 4 in. long, divided 2 way 
down ;. teeth linear, sparsely white-hairy. Corolla 1 in. long. Stamens 
and pollen of the genus. Ovary with deflexed white hairs to the base ; 
ovules 4 in each cell. Capsule (fide Lindau) 2 in. long, shortly stalked, 
white-hairy, perfecting 4 seeds only. 
Nile Land. Somaliland: Harradigit and Darror, James « Thrupp! River 
Ganane, Riva, 1152 ! 
9. R. discifolia, Oliv. in Hook. Ic. Pl. t. 1511. Small shrub; 
innovations densely white-stellate-hairy. Leaves 1 in. in diam., sub-orbic- 
ular, base truncate, with white stellate tomentum disappearing in age; 
petiole } in. long. Flowers solitary ; pedicel 0-1 in. long, axillary ; brac- 
teoles at top of the pedicel, 4 in. in diam., orbicular, petiolulate. Calyx- 
lobes 5, subequal, 4 in. long, linear, subobtuse, stellate-white-tomentose. 
Corolla pink, tube 14-2 in. long, about 5, in. in diam. till near top. 
Stamens and anthers of the genus, pollen honeycombed. Ovary shaggy 
to the base.—James, Unknown Horn Afr. 321, t. 2; Schweinf. & Volk. 
Liste Pl, Somalis, 16. 
Nile Land. Somaliland: Adda Galla, Jumes d: Thrupp! Gooban Plain, Miss 
E. Cole! Ahi Mountains, 7000 ft., Hildebrandt, 8664 ! Ogaden, Riva, 273! Jerado, 
Keller, 190 | 
In the example of Hildebrandt the flowers are sessile in the axils. 
10. R. amabilis, S. Moore in Journ. Bot. 1880, 7. Rather thinly 
hairy with simple (not stellate) hairs. Leaves up to 3} by 2} in., ovate, 
acute, truncate at the base, thin-textured, undulate-margined, petioles 
1-1} in, long, slender. Flowers 3-1, distant, on axillary spikes 2-3 in. 
long, sessile; bracteoles 1 in. long, linear. Calyx-lobes 5, subequal, 
exceeding } in. long, linear-ligulate, subobtuse. Corolla-tube 2} by 
ro in., dilated only at the very top. Stamens, anthers and pollen as of 
the genus. Ovary covered with discoid glands nearly to the base; 
ovules 6 in each cell. Capsule 1.in. long, glandular-hairy ; seeds many.— 
Lindau in Engl. & Prantl, Pflanzenf. iv. 3B. 309, fig. 124, A, B, and in 
Engl. PA. Ost-Afr. C. 368. 
. Nile Land. British East Africa: Taita; Voi River, Hildebrandt, 2480! Tana 
River, Thomae, 21! « 
